Xiangsheng Podi pill was modified by adding Flos Lonicerae and other medicinal lierbs into the pill to formulate a new prescription

which is made into powder in a filter-bag. It is optimal technology to mix the extract of the prescription with its powder in a ratio of 1:3

and to dry the mixture at 100℃ for 2 hours.The best condition for maceration is 85℃ and 160ml water for 15 minutes

Over 80% of the water extract was soluted for the first 5 minutes. The drug compositions of the infusion of the extract in water were qualitatively determined and corresponded to those contained in the modified Xiangsheng Podi prescription. The contents of volatile oil and chlorogenic acid in the infusion were more than 0.3% and 0.5% respectively.